I have an EA II S_Pack. When I turn on the ignition I usually hear the fuel pump start up and run for about 2 seconds. Sometimes I don't hear the fuel pump start and then of coarse the car won't kick over. Some times there is a 5 - 10 second delay before the pump starts and other times I can get it to start by turning the ignition on and off a few times. The fuel pump has also stopped a couple of times when driving....not nice.

Here is the weird bit. I have changed both the fuel pump and the fuel pump regulator over with 2nd hand ones from the wreckers and it still does it?